The evaluation of noninferiority for renal composite outcomes between sodium-glucose cotransporter inhibitors in Japan
Abstract
BACKGROUND: In Japan, six types of sodium-glucose cotransporter inhibitors (SGLT2Is) are currently in use. Here, we evaluated differences in renal composite outcomes between SGLT2Is with or without evidence of cardio vascular outcome trials (CVOTs).
METHODS: We retrospectively surveyed 536 Japanese patients with type 2 diabetes mellitus with chronic kidney disease who received SGLT2Is for more than 1 year. Patients were classified as having received empagliflozin, canagliflozin, or dapagliflozin (n = 270, Evidence (+) group) or as having received ipragliflozin, tofogliflozin, or luseogliflozin (n = 266, Evidence (-) group). The propensity score matching method was performed.
RESULT: On matched cohort model including 205 cases in each group, there were no significant differences in the incidence of renal composite outcomes (n = 28 [14%] in the Evidence (+) group, n = 21 [10%] in the Evidence (-) group for the matched model; p = 0.29) between groups. Cox hazard analyses in the matched cohort model showed that the risk ratio for renal composite outcomes in the Evidence (-) group was 0.73 (95% confidence interval: 0.40-1.32), which was greater than the noninferiority margin of 1.22.
CONCLUSION: Three SGLT2Is with no CVOT's evidence did not show noninferiority compared with other SGLT2Is with evidences.
How strong is the evidence?
Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 536 participants or records.
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